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Flashcards in Endocrine (FINAL) Deck (31)
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1

What is the endocrime system?

A chemical system that uses hormones to control a target organ or organs

2

What is a hormone?

Hormone: chemical released by a cell or gland that acts on another part of the body

3

What is a target organ?

Target organ = organ being acted on by hormone

4

What is the "master" gland? 

The pituitary gland is the "master" gland but in reality the hypothalamus controls the secretions of all the pituitary gland hormones

5

What is the location of the pituitary gland?

The pituitary gland located in the sella turcica of the sphenoid bone and attached to the hypothalamus via the neural stalk

6

What are the hormones secreted by the anterior pituitary gland? 

  1. FSH
  2. LH
  3. ACTH
  4. TSH
  5. GH
  6. PRL

7

What are hormones secreted by the posterior pituitary gland?

  1. ADH
  2. Oxytocin

8

What is the function of the hypophyseal portal system?

The hypophyseal portal system enables endocrine communication between the hypothalamus and the anterior pituitary gland.

9

What is the pathway of the hypothalamic hormones in the hypophyseal portal system?

Hypothalamic hormones (releasing or inhibiting) are secreted into the hypophyseal portal system starting with:

  1. the primary capillaries in the hypothalamus,
  2. leading to portal venules
  3. traveling down the infundibulum
  4. to a group of secondary capillaries in the anterior pituitary.

10

Histology 

Thyroid

11

Name the region

Anterior Pituitary Gland

12

Name the region

Posterior Pituitary Gland

13

Histology 

Anterior Pituitary Gland

14

Histology 

Anterio Pituitary Gland

15

Histology 

Posterior Pituitary Gland

16

Anterior Pituitary Gland

17

Thyroid

18

Thyroid

19

Parathyroid

20

Parathyroid

21

Parathyroid

22

Thyroid

23

Adrenal Gland

24

Adrenal Gland

25

Adrenal Gland

26

Adrenal Gland

27

Adrenal Gland

28

What types of cells are found in the islets of Langerhans? 

  • alpha cells secrete glucagon
  • beta cells secrete insulin

29

 Islets of Langerhans (Pancreas) 

30

 Islets of Langerhans (Pancreas)